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Lennox CB28UH-048 Furnace Door Switch
The job of the furnace door switch inhibits initial fan and burner from switching on so as to avoid injuries. It is crucial to have this part traded for new one at once if you suspect that it is not working.
Warnings your furnace door switch needs replacing
- The whole system will not start even when you close the door
- The switch appears as though it has been worn
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